The blockbuster hit Pokémon Go was issued its second update on Wednesday, fixing login problems. In addition, code inspections seem to point to fast food chain McDonalds as a future app sponsor, potentially for in-game "Pokestop" locations.

Pokémon Go version 1.0.2 is now available on the iOS App Store. Other than the update repairing the Pokemon Trainer Club login issue, which manifested itself after yesterday's fix for the Google account permissions issue, no other fixes are noted.

Following Tuesday's patch, an effort to decompile the Pokémon Go Android code (which shares assets with the iOS code base) has led to revelations of a possible McDonalds sponsorship. Embedded in the game's code and assets are text references and iconography for the restaurant.

McDonalds has already run several Pokémon-themed promotions over the last 15 years, with most of the efforts involving Happy Meal toys.

Developer Niantic's Chief Executive John Hanke, speaking with the New York Timessaid that the company would be announcing sponsored locations for Pokémon Go in the future.

Similar augmented reality title Ingress, also developed by Niantic, has had promotional offers from companies in the past, such as one in February 2016 with Hint Water. The previous title has a million-strong regular player base, which Hanke says is significantly less than the Pokémon Go user base even in limited markets worldwide.

No timetable for any promotional offerings have been announced. Hanke also noted that the company "expected [Pokémon Go] to be popular, but we didn't expect it to be like this," adding that "we're just getting our feet underneath us."

Pokémon Go is a joint effort between Niantic and the various companies responsible for the Pokémon intellectual property, including Nintendo. The game launched on Wednesday in Germany, marking the fourth country where the game is available, joining its debut last week in the U.S., Australia and New Zealand.

Version 1.0.2 of Pokémon Go is available from the iOS App Store, and requires iOS 8 or greater. AppleInsider has experienced difficulty getting it to run on the iOS 10 beta.